diff --git a/tsconfig.json b/tsconfig.json
index 4580aad8..8d9cd6cb 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -39,7 +39,7 @@
     // "noResolve": true,                                /* Disallow 'import's, 'require's or '<reference>'s from expanding the number of files TypeScript should add to a project. */
 
     /* JavaScript Support */
-    "allowJs": true,                                  /* Allow JavaScript files to be a part of your program. Use the 'checkJS' option to get errors from these files. */
+    "allowJs": false,                                  /* Allow JavaScript files to be a part of your program. Use the 'checkJS' option to get errors from these files. */
     "checkJs": false,                                  /* Enable error reporting in type-checked JavaScript files. */
     // "maxNodeModuleJsDepth": 1,                        /* Specify the maximum folder depth used for checking JavaScript files from 'node_modules'. Only applicable with 'allowJs'. */